function telFormatter(value){
    return '<i class="glyphicon glyphicon-earphone" aria-hidden="true"></i> ' + value;
}
function emailFormatter(value){
    return '<i class="glyphicon glyphicon-envelope" aria-hidden="true"></i> ' + value;
}
function roleFormatter(value){
    if(value === "员工"){
        return '<i class="fa fa-user" aria-hidden="true"></i> ' + value;
    }else if(value == "管理员" || value == "系统管理员" || value == "行政"){
        return '<i class="fa fa-user-plus" aria-hidden="true"></i> ' + value;
    }
}
